To be honest with you he better dial it back a bit or get a bigger turbo soon or he's gonna burn it up. Don't get me wrong those Volvo's are almost bulletproof but 1.9bar is like 27.5psi. I think the best tunes out there, Rica and ViVA, only pushed around 23 psi max. Unless he's gonna upgrade the intercoolers and start modding internals he's gonna be pushing his luck.
But yeah that Haldex awd can will make anyone into a pro, it'll launch with the best of them. Loved that car, only downfall was it's really susceptible to heat soak....ask any owner, they know.
Race him again on a real hot day in the summer after driving it around for a while...I'd expect him to still win....but not by nearly as much.